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Questions and Answers
What type of counter is the 74HC163 in the given example?
What type of counter is the 74HC163 in the given example?
- MOD-16 counter
- MOD-8 counter
- MOD-10 counter (correct)
- MOD-12 counter
What is required for these counters to be synchronously cleared?
What is required for these counters to be synchronously cleared?
- Active-low CLR input and PGT on CLK (correct)
- Active-low CLR input and POS edge on CLK
- Active-high CLR input and NEG edge on CLK
- Active-high CLR input and PGT on CLK
What happens if any of the count enable controls is inactive (LOW) in the 74ALS160-163/74HC160-163 Series counters?
What happens if any of the count enable controls is inactive (LOW) in the 74ALS160-163/74HC160-163 Series counters?
- The counter will skip counts
- The counter will reset to 0
- The counter will hold its current count (correct)
- The counter will keep counting ignoring the inactive controls
How is the count function controlled in the 74ALS160-163/74HC160-163 Series counters?
How is the count function controlled in the 74ALS160-163/74HC160-163 Series counters?
What is the function of ENT in the 74ALS160-163/74HC160-163 Series counters?
What is the function of ENT in the 74ALS160-163/74HC160-163 Series counters?
How can the 74HC163 counter be preset to a specific value?
How can the 74HC163 counter be preset to a specific value?
What is the purpose of using a decoding network for a counter?
What is the purpose of using a decoding network for a counter?
Why does the indicator LED method become inconvenient as the size of the counter increases?
Why does the indicator LED method become inconvenient as the size of the counter increases?
How many AND gates are required to decode completely all of the states of a MOD-32 binary counter?
How many AND gates are required to decode completely all of the states of a MOD-32 binary counter?
What are the inputs to the gate that decodes for the count of 21 (that is, 10101₂) in a binary counter?
What are the inputs to the gate that decodes for the count of 21 (that is, 10101₂) in a binary counter?
What is the purpose of the step-by-step analysis process described in the text?
What is the purpose of the step-by-step analysis process described in the text?
What is the main difference between active-HIGH and active-LOW decoding for a counter?
What is the main difference between active-HIGH and active-LOW decoding for a counter?
What is the purpose of the LOAD control input in the 74HC160 counter?
What is the purpose of the LOAD control input in the 74HC160 counter?
If the D/U control input of the 74HC160 counter is LOW, what will happen when a positive-going transition (PGT) occurs on the CLK input?
If the D/U control input of the 74HC160 counter is LOW, what will happen when a positive-going transition (PGT) occurs on the CLK input?
What is the purpose of the MAX/MIN output in the 74HC160 counter?
What is the purpose of the MAX/MIN output in the 74HC160 counter?
In the example with the 74HC190 counter, what condition must be met for the RCO (Ripple Carry Output) to be enabled?
In the example with the 74HC190 counter, what condition must be met for the RCO (Ripple Carry Output) to be enabled?
In the comparison between the 74ALS163 and 74ALS191 counters, what is the difference in their LOAD input control?
In the comparison between the 74ALS163 and 74ALS191 counters, what is the difference in their LOAD input control?
In the timing diagram for the 74HC160 counter, what is the initial state of the counter?
In the timing diagram for the 74HC160 counter, what is the initial state of the counter?
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